Concrete-incased file



Dec. 22,1925- c. E. CORTES- CONCRETE INCASED FILE i INVENTOR.

' CZ: 60127219.. W2-

ATTORNEYS.

' Filed Feb. 20, 1922 Patented Dec. 22, 1925.

UNITED STATES CARLOS I. CORTES, OI MARTIN HZ, OAIJI'OBHIA.

concurs-muslin run.

. Application filed February 20, 1922. Serial No. 587,702.

To all whom it may concern;

Be it known that I, CARLOS E. Con'rns, a

' citizen of the United States, and a resident of Martinez, county of Contra Qosta, State of California, have invented a new and useful Concrete-Incased Pile, of which the fol-- lowing is a specification.

present specificatlon.

.The invention relates to the protection of driven piles usually wooden piles by incasing the entire pile or exposed portions thereof in concrete.

An object of the invention is to provide a concrete incased pile which will resist the deleterious action of salt water and the animal life therein.

Another object of the invention is to provide a method of incasing a driven pile with a concrete monolith.

The invention possesses otheradvantageous features, some of which, with the foregoing, will be set forth at length 1n the following descri tion, where I shall outline in full, that orm of the invention which I have selected for illustration in the drawings accompanying and forming part of the In said drawings I have shown one embodiment of my invention, but it is to be understood that I do not limit myself to such form, since the invention, as set forth in the claims, may be'embodied in a plurality of forms.

Referring to said drawings Figure 1 is a vertical section through the upper portion of a concrete incased pile of my invention.

Fig. 2 is a vertical section showing'the joint between the pile and the lower concrete casing section.

Fig. 3 is a vertical section showing the joint between two casing sections.

Fig. 4 is a vertical section of a casing section.

Fig. 5 is a perspective view of a bisected lower concrete casing section.

In accordance with my invention, I sure round the pile to be protected, with a plurality of contiguous casing sections formed of concrete and fill the annular space be-v tween the pile and the casing with concrete, which, when it sets, forms a monolithic mass with'the casing, completely protecting the pile against the ravages of animal life in the water in which the pile is driven. The casing sections 2 are cylindrical in form and have an inside diameter greater than the diameter of the driven pile 10, and the annular space is filled with concrete. The sec tions are formed of concrete, preferably placed by impact, as with a cement gun, so that the concrete of the casings is dense and closely packed, thus rendering the casings substantially impervious. The sections are preferabl reinforced with wire mesh 3 and are made placing the mesh on a form and applylng t e concrete thereto by impact. The reinforcing wires are permitted to'extend, at their ends 4, from the ends of the casing sections and when the sections are arranged on a driven pile, the pro'ecting ends on the contiguous ends of the a jacent sections are twisted together, as at 5, to secure the sections together on the pile.

The lowermost section 2 of the string of easing sections, is provided at its lower end with an inturned flange 6, having a sloping upper surface, the flange serving to center the section on the pile. When this section is applied to the pile, a sheet metal annulus 7, of substantially V-shape in cross section, is placed on the flange, to close the joint between the lower end of the casing and the pile. One face 8, of the metallic annulus, lies adjacent the face of the pile and serves to scra e the barnacles therefrom, as the casing 1s lowered. The joint between the casing and the pile is further closed by a canvas gasket 9, fitting the annulus and contacting with the sides of the pile and the casing. The lower casing section is provided with means for the atttachment of cables for supporting and lowering the string of casing sections. Embedded in the section at its lower end is a metallic ring 13, to which a plurality of metallic bails 14 are secured, in the present instance there being four bails. The bails are partly embedded in the concrete of the section, and extend from the section at their upper ends. Two

adjacent bails are usually connected together with a short length of cable or wire 17 and the supporting cables 15 are vided on their ends with releasable hooks 18 which encircle the cables 17, so that the cables 15 may be released after the concretingof the pile has been finished. The string of casing is suppkorted during the concreting operation, by t e cables 15, which extend upward to a stringer 16 or other suitable support..

In concreting a pile, the lower section 2 and one or more superposed sections 2 are placed on the pile and secured together and prolowered, so that the lower edge of the casing i above the water line. The annular space between the ap lied sections and the pile is then filled with wet concrete and on account of the relative shallowness of this annular space, the concrete may be readily caused to flow to all parts of the space, so that no voids occur. The filled portion of the casing is then lowered, submerging the lower end thereof, but maintainin the upper end thereof above the water line. The hydrostatic pressure within the casing is greater than the external hydrostatic pressure, so that a minimum of salt water finds its way to the interior of the casing. This feature is of advantage, due to the deleterious action of salt water on freshconcrete.

After the filled sections have been lowered as above stated, one or more additional sections are placed on the pile and secured to the sections previously placed and the additional annular space filled with fresh concrete and the casing again lowered as before. This operation is repeated until the lower section 2 has reachedits desired position on the pile which may be several feet below the mud line, so that the entire'surface of the ilc exposed to water is protected or whic 1 maybe the bottom of the pile so that a composite pile is formed. The cables are then securely fastened and the concrete permitted to set. The concrete, as it sets, blnds firmly to the concrete sections, forming a monolith about the pile and this monolith has a hard dense shell'or-outcr zone, produced by the impact formed casing sections.

The sections are preferably carried up above the top of the pile and the space withinthe upper sections is'filled with concrete, in which suitable vertically disposed reinforcin elements are arranged.

Ear casin end, referab y the upper end, with an inward y inclined or bevelled face 19, preferably extending from the inner to outer surface of the section and at the other end is provided with a double bevelled or wedge shaped face 21, the edge of the wedge prefsection 2 is provided at one erably occurring midway between the inner and outer surfaces of the section. The outer face of the wedge has the same inclination as the face 19,'so that when sections are placed together, a close joint is formed around the outside of the casing. On the inside of a, casing, a groove 22 is formed in which the twists 5 are disposed and which becomes filled with concrete to" effectively seal the joint. The sections are preferably provided with means for centering them on the piles, such as by the provision of integral bosses 23, spaced apart circumferentially on the inner face of the section.

The sections are preferably cylindrical in form, but when used in connection with other than cylindrical elements, such as for instance when used in the repair of rectangular concrete piles, they may be rectangular in shape, or they may be formed in any suitable shape for the same or other uses.

1. In a protective covering for a. pile, a concrete cylinder provided on its lower edge with an inwardly extending flange ha ing an inclined up or surface, an annular metallic clement, -shaped in cross section engaging said surface and adapted to partially close the joint between the pile and the cylinder and a canvas gasket engaging said element and sealing said joint.

2. In a protective covering for a pile, a

plurality of contiguous superposed concrete cylinders, each cylinder having a beveled face on one end and a wedge shaped face on the other end, the beveled face of one cylinder coo crating with the wedge shaped face on't e contiguous cylinder, and reinforcing material embedded in said cylinders and projectin through said faces, the reinforcing material projecting from one face of one cylinder being adapted to inter-tie with the reinforcing material projecting from the contiguous face of the next cylinder.

In testimony whereof, I have hereunto set my hand.

CARLOS E. CORTES. 

